Metal-rolls



(No Model.)

' J. T. HASTINGS.

METAL ROLLS.

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UNITED STATES PATENT OFFICE.

JAMES T. HASTINGS, OF CHICAGO, ILLINOIS.

M ETAL-RO LLS.

SPECIFICATION forming part of Letters Patent No. 409,679, dated August27, 1889.

Application filed March 12, 1889- Serial No. 802,999. (No model.)

To aZZ whom it may concern:

Be it known that I, J AMEs T. HASTINGS, of Chicago, in the county ofCook and State of Illinois, have invented certain new and usefulImprovements in Metal-Rolls, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,in which like letters of ref erence indicate like parts.

As is well known, in the rolling of metal a certain portion thereof ispressed laterally between the contiguous faces of the rolls, therebyforming a thin lateral film or flange, to prevent which I have formed aknife-edge adjacent to the matrix of the die which severs the film fromthe article rolled; but it is difficult in practice to adjust the rollswith sufficient accuracy in relation to each other, and careless workmenare liable to press them too closely together, and thus injure thecutting-edges and render them worthless. My object is to overcome thisdifficulty and to provide means whereby the dies may be adjusted withaccuracy and without injury thereto. ner hereinafter more particularlydescribed and claimed.

Figure 1 in the drawings represents a front elevation of a machineembodying my improvements and showing two of the rolls in transversesection. Fig. 2 is a like view showing a modification thereof; and Fig.3 is a view taken upon the line 00 90, Fig. 1.

Referring to the drawings, A represents the frame of the roller-mill, inwhich are journaled shafts B connected by means of the usual gears B C.Set-screws Z) I), connected with the usual sliding journal-boxes, serveto adjust said shafts with relation to each other.

D E indicate the rolls in which are formed (lies (1 c of any desiredshape. Such parts of the dies as require irregular forms I prefer tomake in detachable sections and insert them in the rolls, as shown at f,Fig. 2. Upon each side of the dies (Z are formed knifeedges g, which, itis obvious, if pressed too closely together by means of the set-screwsI) would be injured. To prevent this I pro vide guard-rolls H 11',preferably upon both sides of each of said die-rolls; but it is obviousthat but one pair of guard-rolls need be used. Said guard-rolls arepreferably made of the exact diameter of the die-rolls in the plane Iaccomplish this object in the,man-' of the said knife-edges g, and areof course concentric therewith, so that when the peripheries of saidguardrolls upon the respective shafts are brought into contact saidopposite knife-edges are made to merely touch each other, but not withsufficient contact to cause injury thereto.

It it obvious that the diameter of the respective guard-rolls may Varyso long as they are concentric with the adjacent formingrolls. Saidguard-rolls may be made integral with the forming-rolls, as shown uponthe left in Fig. 1; they may beformed in rings and shrunken uponshoulders, as shown upon the right in said figure they maybe bolted tothe respective sides of the roll, as shown at the left in Fig. 2; orthey may be attached to the shafts independently of the rolls, as shownat the right in said last-named figure. I11 either event they enable theforming-rolls to be adjusted with absolute accuracy by simply tighteningthe set-screws b I), while the lateral film which is severed by theknife-edges is free to discharge itself between said guard rolls and thebeveled edges of the formingroll.

Having thus described my invention, I claim- 1. The combination, withmetal formingrolls having cutting-edges adjacent to their matrices, ofguard-rolls concentric therewith and fitted to be brought intoperipheral contact with each other, substantially as shown anddescribed. A

2. The combination, with metal formingrolls in which a cutting-edge isformed adjacent to the die-matrix, of guard-rolls concentric with saidforming-rolls, respectively, and arranged to be brought into peripheralcontact with each other, and means for adjusting the relative positionsof the rollershafts, substantially as shown and described.

3. The combination of the rolls D E, cutting-edges guard-rolls II H, andset-screws for adjusting the roller-shafts, substantially as shown anddescribed.

In testimony whereof I have signed this specification, in the presenceof two subscribing witnesses, this 9th day of March, 1889.

JAMES T. HASTINGS.

\Vitnesses:

D. H. FLETCHER, J. HALPENNY.

